Feeding scale-preventives into boilers.



No. 667,559 A Patented Feb. 5, |90I. G. NEUBAUEB.

FEEDING SCALE PBEVENTIVES INTO BUILEBS.

. (Application 'led Nov. 16, 1900.) (No Model.)

figli..

W/TNESSES.' NVENTOH .Q` 15. E 'eozyefeaZZ/@ I By l TTHNEYS mi noms Pneuscu. rmorcmwcv wAsnwrrrcNA u. c.

llni'rnn @raras GEORGE NEUBAUER, OF NEW YORK, N. Y.

FEEDING SCALE-PREVENTIVES INTO BOILERS.

SPECIFICATION forming part of Letters Patent No. 667,559, dated February5, 1901.

Application led November 16, 1900. Serial No. 36,703. (No model.)

To all whom it mfcty concern:

Be it known that I, GEORGE N EUBAUER, a citizen of the United States,and a resident of the city of New York, borough of Manhattan, in thecounty and State of New York, have invented certain new and usefulImprovements in Feeding Scale-Preventives into Boilers, of which thefollowing is a full, clear, and exact description.

The object of the invention is to provide certain new and usefulimprovements in apparatus for feeding scale-preventives intosteam-boilers, the apparatus being simple and durable in construction,very effective in operation, and arranged to permit the engineer toforce more or less of the preventive into the boiler, according to thecondition of the feed-water.

The -invention consists of novel features and parts and combinations ofthe same, as will be fully described hereinafter and then pointed out inthe claims.

A practical embodiment of the invention is represented in theaccompanying drawings, forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure l is an enlarged sectional side elevation of the improvement.Fig. 2 is a transverse section of the same on the line 2 2 in Fig. l,and Fig. 3 is a reduced side elevation of the improvement as applied.

A suitable container A for holding the liquid scale-preventive connectsby a passage b with an injector C, from which leads a pipe D to thesuction-pipe E of the pump E of any approved construction and having thedischarge-pipe E2 connected with the boiler F to be supplied withfeed-water. A pipe D connects the discharge-pipe E2 with the injector O,so that when the feed-pump E is in operation a portion of the feed-waterpasses from the discharge-pipe E2 through the pipe D' into theinjector-nozzle C and through the saine into and through thereceiving-nozzle C2, to then pass to the pipe D and to the suction-pipeE of the feed-pump.

By the water passing from the nozzle O' to the nozzle C2 a suction iscreated, so that the scale-preventive is drawn by the passage B from thecontainer A into the injector to miX with the water and pass with thesame through the nozzle C2 and pipe D into the feed-water passing tothefeed-pump E. The water thus charged with liquid scale-preventive passesinto the boiler with the feed-Water. Thus it will be seen that in orderto operate the apparatus no further machinery is needed, as thefeed-pump itself furnishes the necessary motive agent to actuate theapparatus.

As shown in the drawings, suitable valves G and G' are employed forregulating the flow of feed-water through the injector C, and a valve His arranged in the passage B to control the amount ofliquid'scale-preventive passing from the container A to the injector.The passage B is also provided with glass panes I to permit of viewingthe amount of scale-preventive passing from the container to theinjector, and in the said passage is also arranged an air-valve J toallow atmospheric air to pass to the injector in case of undue pressureat the injector-nozzles O' and O2. A valve K is also arranged in thepassage B to immediately close the latter when the pump is stopped, sothat Water cannot back up in the passage and pass into the container. Byclosing the valve K it is not necessary to close the valves G G when thepump and injector.

are not in operation. The injector-nozzle C2 is adjustable toward andfrom the nozzle O to allow proper adjustment between the nozzle for thevacuum or suction required, and access is had to the said nozzle by ascrewplug C3, screwing in one side of the injectorcasing. The injectoris preferably provided 'with a sieve L to prevent foreign matter fromclogging the injector.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patentl. An apparatus for feeding scale-preventivesinto boilers, consisting of an injector connected at the inlet with thedischarge of a boiler feed-pump and .at the outlet with the suction ofthe boiler feed-pump', and a container for the scale-preventive,discharging into the said injector, as set forth.

2. An apparatus for feeding scale-preventives into boilers, consistingof an injector connected at the inlet With the discharge of a boilerfeed-pump and at the outlet with the suction of the boiler feed-pump, acontainer for the scale-preventive, discharging into the IOO saidinjector, and means for regulating the supply of preventive fromthecontainer to the injector, as set'forth.

3. An apparatus for feeding scale-preventives into boilers, consistingof an injector connected at the inlet with the discharge of a boilerfeed-pump and at the outlet with the suction of the boiler feed-pump, acontainer for the scale-preventive, discharging into the said injector,and an air-valve for admitting air to the injector in case of backpressure at the injector-nozzles, as set forth.

et. An apparatus for feeding scale-preventives into boilers, comprisingan injector connected at the inlet-nozzle with the discharge of theboiler feed-pump and at the outlet-nozzie with the suction of the boilerfeed-pump, a container for containing the scale-preventive, a passageconnecting the said container i with the injector, a glass paneinterposed in GEORGE NEUBAUER.

Witnesses:

JOHN YOUNG, ALBERT RIMMELIM.

